CN109516441A - A kind of recycling of sulfur hexafluoride, low temperature fluid injection bulking system and its working method - Google Patents
A kind of recycling of sulfur hexafluoride, low temperature fluid injection bulking system and its working method Download PDFInfo
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- CN109516441A CN109516441A CN201811314526.1A CN201811314526A CN109516441A CN 109516441 A CN109516441 A CN 109516441A CN 201811314526 A CN201811314526 A CN 201811314526A CN 109516441 A CN109516441 A CN 109516441A
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- filling
- valve
- pipeline
- sulfur hexafluoride
- fluid injection
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- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 229910018503 SF6 Inorganic materials 0.000 title claims abstract description 66
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 65
- 238000002347 injection Methods 0.000 title claims abstract description 41
- 239000007924 injection Substances 0.000 title claims abstract description 41
- 239000012530 fluid Substances 0.000 title claims abstract description 40
- 238000004064 recycling Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000011049 filling Methods 0.000 claims abstract description 223
- 238000009826 distribution Methods 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims description 80
- 229910000831 Steel Inorganic materials 0.000 claims description 49
- 239000010959 steel Substances 0.000 claims description 49
- 230000008676 import Effects 0.000 claims description 19
- 238000001179 sorption measurement Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 6
- 239000002912 waste gas Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000012371 Aseptic Filling Methods 0.000 abstract description 2
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 208000001034 Frostbite Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009924 canning Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000752 ionisation method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/45—Compounds containing sulfur and halogen, with or without oxygen
- C01B17/4507—Compounds containing sulfur and halogen, with or without oxygen containing sulfur and halogen only
- C01B17/4515—Compounds containing sulfur and halogen, with or without oxygen containing sulfur and halogen only containing sulfur and fluorine only
- C01B17/453—Sulfur hexafluoride
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/10—Arrangements for preventing freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/002—Automated filling apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
- F17C5/04—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases requiring the use of refrigeration, e.g. filling with helium or hydrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/04—Reducing risks and environmental impact
- F17C2260/044—Avoiding pollution or contamination
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a kind of recycling of sulfur hexafluoride, low temperature fluid injection bulking system and its working methods, are related to gas recycling and cold-aseptic filling field.There is the behavior to atmosphere discharge SF6 gas, cause the injury very big to environment and operator in traditional direct-type low temperature fluid injection bulking system.The present invention include recyclable device for recycling sulfur hexafluoride and be connected with recyclable device for filling filling apparatus, filling apparatus includes filling distribution tank, vacuum pump, multiple valves and connecting pipe；Connecting pipe includes exhaust pipe, filling pipeline, vacuum lead；Filling distribution tank is equipped with the filling pipeline of at least one, and valve includes filling pipeline exhaust valve, the filling valve on filling pipeline, the filling pipeline vacuum valve on vacuum lead on exhaust pipe.The technical program can effectively realize filling safety, effectively realize the recycling of tail gas, improve environmental protection ability, improve the safety to operator.
Description
Technical field
The present invention relates to gas recycling and cold-aseptic filling fields more particularly to a kind of recycling of sulfur hexafluoride, low temperature fluid injection to fill
Dress system and its working method.
Background technique
Sulfur hexafluoride (SF6) gas is a kind of strong electronegativity gas, easily adsorbs free electron by its molecule and forms matter
Big anion is measured, weakens impact ionization process in gas, therefore its electrical insulation strength is very high, it is about empty in uniform electric field
2.5 times of gas dielectric strength.Since SF6 gas has excellent arc extinction performance and insulation performance and good chemical stabilization
Property, arc-extinguishing medium is widely used as in high-voltage circuitbreaker.It is also used as dielectric to be widely used in gas simultaneously
Among insulation in combined electric appliance (GIS).Although SF6 gas itself is nontoxic to the human body, harmless, it is a kind of greenhouse effects gas
Body, monomolecular greenhouse effects are 2.2 ten thousand times of carbon dioxide.
Especially it can decompose under the action of electric arc and generate the extremely strong hazardous decomposition products of part respond, when having
In the presence of moisture and oxygen, the sufficiently complex multiple compounds of component are generated with electrode material, reaction of moisture, this is not only resulted in
The performance deterioration of organic insulating material or corrosion of metal, decline apparatus insulated performance, bring to electrical equipment inside equipment
Serious consequence can also cause security risk to operator.Before carrying out large-scale maintenance to such equipment, generally require equipment
Interior SF6 gas carries out reclaiming clean processing, can just recycle.
It is a variety of that SF6 gas purification treating device generallys use pressure-variable adsorption, air separation, mechanical refrigeration formula cryogenic separation etc.
Purified treatment mode carries out purified treatment to the SF6 gas of recycling.SF6 after purified treatment carries out being filled into steel cylinder process
In, direct-type low temperature fluid injection bulking system is generallyd use at present.
Direct-type low temperature fluid injection bulking system primary operational process are as follows: by (- 30 DEG C at low temperature of the SF6 after purified treatment
Left and right) directly through having residual air, and pipeline and steel cylinder when using for the first time due to liquid injecting pipeline in liquid injecting pipeline injection steel cylinder
Interface also has air residual, just can be carried out after must washing away pipeline and interface with the SF6 after purified treatment before fluid injection filling.
There is the behavior to atmosphere discharge SF6 gas in traditional direct-type low temperature fluid injection bulking system, cause to environment and
The very big injury of operator.Major defect has following five aspects: first is that every time before first steel cylinder of filling connection, in order to arrange
Except the air in fluid injection connecting pipe, fluid injection connecting tube must discharge SF6 gas in advance；Second is that in order to guarantee filling fluid injection connection
Pipe does not enter steel cylinder with the residual air at steel cylinder connector, is washed away with SF6 gas to steel cylinder interface, this results in one
Quantitative SF6 gas discharge；Third is that since traditional direct-type low temperature fluid injection bulking system only has a liquid injecting pipeline, and handle dress
It is more to set amount per treatment, need to multiple steel cylinders carry out it is filling, when conversion fills steel cylinder, fluid injection connecting pipe needs to discharge
The SF6 gas of partial gasification；Fourth is that the SF6 of surplus can not be recycled in filling connecting pipe after filling, gas pressure can be by
Edge up height, can only be discharged directly to the atmosphere；Fifth is that being adopted since SF6 is that (- 25 DEG C ~ -30 DEG C) Zuo You progress are filling at low temperature
Mode manually washes away filling connecting pipe and steel cylinder interface, and operator has the risk of frost bitten.Simultaneously as
The experience of operator is depended on to the degree that filling pipeline and steel cylinder interface wash away, and the quality of gas-filling can be generated certain
Influence.
Summary of the invention
The technical problem to be solved in the present invention and the technical assignment of proposition are to be improved and improved to prior art,
A kind of recycling of sulfur hexafluoride, low temperature fluid injection bulking system and its working method are provided, to promote environment protective capability and improve pair
For the purpose of the safety of operator.For this purpose, the present invention takes following technical scheme.
A kind of recycling of sulfur hexafluoride, low temperature fluid injection bulking system, including for recycling sulfur hexafluoride recyclable device and with
What recyclable device was connected is used for filling filling apparatus, and the filling apparatus includes filling distribution tank, vacuum pump, multiple valves
And connecting pipe；The connecting pipe includes exhaust pipe, filling pipeline, vacuum lead；The filling distribution tank
Equipped with the filling pipeline of at least one, the valve includes the filling pipeline exhaust valve being set on exhaust pipe, is set to filling tube
Filling pipeline vacuum valve on filling valve, vacuum lead on road.Before every time filling, pass through vacuum pump and vacuum lead
By filling distribution tank, filling fluid injection connecting pipe and the interface progress vacuumize process for connecting steel cylinder, air when preventing filling
It is mixed into steel cylinder；It, can be in time by filling distribution tank and filling pipeline by filling pipeline exhaust valve after filling every time
Interior extra gas is recovered to depth using the compressor in processing unit by the remaining SF6 in filling pipeline and filling distribution tank
In cold containers or surge tank, in order to recycle；Valve mainly controls filling liquid or gas flow, plays connection or partition
Effect, can effectively realize filling safety, effectively realize the recycling of tail gas, improve environmental protection ability, improve
Safety to operator.
As further improving and supplementing to above-mentioned technical proposal, the invention also includes following additional technical features.
As optimization technique means:
The filling distribution tank is equipped with two or more filling pipelines.By the way that more filling pipelines are arranged, can carry out simultaneously more
A steel cylinder it is filling, filling efficiency is good.
Filling valve there are two setting on one filling pipeline, is respectively arranged on the first and last end of filling pipeline.It is filling by setting 2
Valve can reduce Pipeline damage bring safety issue, and safety is good, in addition, the pipe sealing after filling, is effectively reduced gas
Discharge, convenient for the SF6 Gas recovery in filling pipeline.
The connecting pipe further includes the filling pipeline being connected with recyclable device, and the filling pipeline is equipped with filling
Pipeline main valve.Recyclable device is conveniently realized to be connected to the control of filling apparatus.
The recyclable device includes surge tank, compressor and container, the surge tank import and filling distribution tank phase
Even, compressor, which extracts the remaining sulfur hexafluoride gas in filling apparatus into surge tank and container, realizes that sulfur hexafluoride gas returns
It receives.Conveniently realize the recycling of tail gas.
The recyclable device further includes adsorption tower, pipeline of the adsorption tower between surge tank and compressor
On, the import of adsorption tower is connected with surge tank outlet, and the outlet of adsorption tower is connected with the import of compressor.It can efficiently reduce miscellaneous
The content of matter gas promotes the recycling quality of SF6 gas.
The recyclable device further includes topping-up pump, and the outlet of the topping-up pump is connected with filling pipeline main valve import.
Realize that fluid injection is filling.
The container is deep cooling container, and between topping-up pump and compressor, deep cooling container goes out the deep cooling container
Mouth is connected with fluid injection pump inlet, and deep cooling container import is connected with compressor.Realize that the liquefaction of SF6 gas is kept, to realize fluid injection
It is filling.
The recyclable device further includes exhaust gas exhaust pipe, and exhaust gas exhaust pipe one end is connected with surge tank import, is given up
The tail-gas pipeline other end can be dismounted with exhaust gas memory detachable connection, and exhaust gas exhaust pipe is equipped with waste gas recovery valve Vd.
Realize the centralized processing and storage of exhaust gas.
A kind of recycling of sulfur hexafluoride, low temperature fluid injection packaging process, comprising the following steps:
1) ensure that filling pipeline total valve V0, filling pipeline exhaust valve Va are in close state before filling, filling steel cylinder is distinguished
It is connect with filling pipeline, opens filling pipeline vacuum valve Vb and filling valve, open vacuum pump to filling distribution tank, filling pipeline
And filling connecting tube and steel cylinder interface position carry out vacuumize process, when the pressure in pipeline is less than 5Pa, close filling tube
Road vacuum valve Vb and filling valve, close vacuum pump, and vacuum processing terminates；
2) filling valve and cylinder valve for opening the filling filling pipeline of pipeline total valve V0 and first, using topping-up pump to the 1st
A steel cylinder carries out weight that is filling, and weighing steel cylinder in real time, when the weight of steel cylinder increases to setting value, closes topping-up pump, fills
Valve is filled, cylinder valve is closed, the 1st bottle of SF6 cylinder filling terminates；Open the filling valve and steel cylinder of topping-up pump, the second filling pipeline
Valve carries out the 2nd steel cylinder filling, and so on, after the completion of all steel cylinders are filling, close filling pipeline total valve V0；
3) filling pipeline exhaust valve Va, the Vc and filling valve for opening exhaust pipe, are then turned on the compressor pair of processing unit
Gas in filling distribution tank and pipeline is recycled by exhaust pipe, is an atmospheric pressure to the pressure in exhaust pipe
When, filling pipeline exhaust valve Va, Vc and filling valve, and close compressor are closed, steel cylinder connecting tube, filling end are disconnected.Operation
Process is simple and convenient, Yi Zhihang.
The filling pipeline is all made of utilidor.Low temperature SF6 is avoided to gasify, convenient for filling.
The utility model has the advantages that
1, the recycling for having effectively achieved extra filling tail gas in filling distribution tank and filling pipeline improves SF6 gas benefit
With rate.
2, by the way that 2 filling valves are arranged on filling pipeline, the row of filling rear low temperature SF6 gas can be efficiently reduced
It puts, reduces the pollution to atmosphere, improve environment protecting.
3, by using the vacuum type low temperature fluid injection canning means of utilidor, will not frostbite operator, safety is good.
4, storage is recycled by the centralized processing to exhaust gas, can effectively avoids discharging exhaust gas to atmosphere, improves environmental protection
Effect.
5, the absorption by adsorption tower to gaseous impurity can effectively promote the recycling quality of SF6 gas, reduce impurity gas
Body content promotes SF6 gas purity.
Detailed description of the invention
Fig. 1 is apparatus of the present invention schematic diagram.
In figure: the filling distribution tank of 1-；2- vacuum pump；3- topping-up pump；4- deep cooling container；5- compressor；6- adsorption tower；7- is slow
Rush tank；8- steel cylinder；9- exhaust gas memory.
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with Figure of description.
As shown in Figure 1, a kind of sulfur hexafluoride recycling, low temperature fluid injection bulking system, including for recycling returning for sulfur hexafluoride
Receiving apparatus and be connected with recyclable device for filling filling apparatus, filling apparatus includes filling distribution tank 1, vacuum pump 2, more
A valve and connecting pipe；Connecting pipe includes exhaust pipe, filling pipeline, vacuum lead；Filling distribution tank 1 is equipped with 3
The filling pipeline of root, valve include the filling pipeline exhaust valve on exhaust pipe, the filling valve on filling pipeline, take out very
Filling pipeline vacuum valve on vacant duct.
It in order to reduce gas discharge, sets that there are two filling valves on a filling pipeline, is respectively arranged on the first and last end of filling pipeline.
By the way that 2 filling valves are arranged, Pipeline damage bring safety issue can be reduced, safety is good, in addition, the pipeline after filling seals
It closes, gas discharge is effectively reduced, convenient for the SF6 Gas recovery in filling pipeline.
In order to realize that recyclable device is connected to the control of filling apparatus, connecting pipe further includes the filling being connected with recyclable device
Tubulature road, filling pipeline are equipped with filling pipeline main valve.Recyclable device is conveniently realized to be connected to the control of filling apparatus.
In order to keep the low-temperature condition of SF6 gas in filling pipeline, filling pipeline is all made of utilidor.Avoid low temperature
SF6 gasification, convenient for filling.
In order to realize tail gas recycle, recyclable device includes surge tank 7, compressor 5 and container, 7 import of surge tank with it is filling
Distribution tank 1 is connected, and the remaining sulfur hexafluoride gas in filling apparatus is extracted and realizes six into surge tank 7 and container by compressor 5
The recycling of sulfur fluoride gas.Conveniently realize the recycling of tail gas.
In order to reduce the impurity of gas recovery, recyclable device further includes adsorption tower 6, and adsorption tower 6 is located at surge tank 7 and compression
On pipeline between machine 5, the import of adsorption tower 6 is connected with the outlet of surge tank 7, the outlet and the import phase of compressor 5 of adsorption tower 6
Even.The content of foreign gas can be efficiently reduced, the recycling quality of SF6 gas is promoted.
In order to realize that fluid injection is filling, recyclable device further includes topping-up pump 3, the outlet of topping-up pump 3 and filling pipeline main valve into
Mouth is connected.Realize that fluid injection is filling.
In order to keep the low-temperature liquefaction of SF6 gas, container is deep cooling container 4, and deep cooling container 4 is located at topping-up pump 3 and compression
Between machine 5, the outlet of deep cooling container 4 is connected with 3 import of topping-up pump, and 4 import of deep cooling container is connected with compressor 5.Realize SF6 gas
Liquefaction keep, to realize that fluid injection is filling.
In order to realize the processing and storage to exhaust gas, reduce because discharging the pollution to atmosphere, recyclable device further includes exhaust gas
Exhaust pipe, exhaust gas exhaust pipe one end are connected with 7 import of surge tank, and the exhaust gas exhaust pipe other end can be with exhaust gas memory 9
Detachable connection dismounting, exhaust gas exhaust pipe are equipped with waste gas recovery valve Vd.Realize exhaust gas centralized processing and storage, reduce because
Discharge the pollution to atmosphere.
A kind of recycling of sulfur hexafluoride and low temperature fluid injection pouring process, comprising the following steps:
1) ensure that filling pipeline main valve V0, filling pipeline exhaust valve Va are in close state before filling, by filling steel cylinder 8 respectively with
Filling pipeline connection, opens filling pipeline vacuum valve Vb and filling valve, opens vacuum pump 2 to filling distribution tank 1, filling pipeline
And filling connecting tube and 8 interface position of steel cylinder carry out vacuumize process, when the pressure in pipeline is less than 5Pa, close filling
Pipeline vacuum valve Vb and filling valve close vacuum pump 2, and vacuum processing terminates；
2) 8 valve of filling valve and steel cylinder for opening the filling filling pipeline of pipeline total valve V0 and first, using topping-up pump 3 to the
1 steel cylinder 8 carries out weight that is filling, and weighing steel cylinder 8 in real time, when the weight of steel cylinder 8 increases to setting value, closes topping-up pump
3, filling valve, closes 8 valve of steel cylinder, and the 1st bottle of SF6 cylinder filling terminates；Open the filling valve of topping-up pump 3, the second filling pipeline
The 2nd steel cylinder 8 is carried out with 8 valve of steel cylinder filling, and so on, after the completion of all steel cylinders 8 are filling, it is total to close filling pipeline
Valve V0；
3) filling pipeline exhaust valve Va, Vc and filling valve of exhaust pipe are opened, the compressor 5 for being then turned on processing unit is right
Gas in filling distribution tank 1 and pipeline is recycled by exhaust pipe, is an atmosphere to the pressure in exhaust pipe
When pressure, filling pipeline exhaust valve Va, Vc and filling valve, and close compressor 5 are closed, disconnects 8 connecting tube of steel cylinder, filling end.
Operating process is simple and convenient, Yi Zhihang.
Before every time filling, by vacuum pump 2 and vacuum lead by filling distribution tank 1, filling fluid injection connecting pipe and
The interface for connecting steel cylinder 8 carries out vacuumize process, and air is mixed into steel cylinder 8 when preventing filling；After filling every time, pass through
Filling pipeline exhaust valve can be in time by gas extra in filling distribution tank 1 and filling pipeline, using in processing unit
Remaining SF6 in filling pipeline and filling distribution tank 1 is recovered in deep cooling container 4 or surge tank 7, in order to follow by compressor 5
Ring utilizes；Valve mainly controls filling liquid or gas flow, plays the role of connection or partition, can effectively realize filling
Safety；By using the vacuum type low temperature fluid injection canning means of utilidor, will not frostbite operator, safety is good.Have
The recycling of tail gas and the processing storage of exhaust gas are realized in effect ground, improve environmental protection ability, improve the safety to operator
Property.
In this example, exhaust gas memory 9 is exhaust gas steel cylinder.
A kind of recycling of sulfur hexafluoride shown in figure 1 above, low temperature fluid injection bulking system and its working method are of the invention
Specific embodiment has embodied substantive distinguishing features of the present invention and progress, can use needs according to actual, open in of the invention
Under showing, the equivalent modifications of shape, structure etc., the column in the protection scope of this programme are carried out to it.
Claims (10)
1. a kind of sulfur hexafluoride recycling, low temperature fluid injection bulking system, it is characterised in that: including the recycling for recycling sulfur hexafluoride
Device and be connected with recyclable device for filling filling apparatus, the filling apparatus includes filling distribution tank (1), vacuum
Pump (2), multiple valves and connecting pipe；The connecting pipe includes exhaust pipe, filling pipeline, vacuum lead；Institute
The filling distribution tank (1) stated is equipped with the filling pipeline of at least one, and the valve includes the filling pipeline on exhaust pipe
Exhaust valve, the filling valve on filling pipeline, the filling pipeline vacuum valve on vacuum lead.
2. a kind of sulfur hexafluoride recycling according to claim 1, low temperature fluid injection bulking system, it is characterised in that: described
Filling distribution tank (1) is equipped with two or more filling pipelines.
3. a kind of sulfur hexafluoride recycling according to claim 2, low temperature fluid injection bulking system, it is characterised in that: one is filling
Filling valve there are two setting on pipeline, is respectively arranged on the first and last end of filling pipeline.
4. a kind of sulfur hexafluoride recycling according to claim 3, low temperature fluid injection bulking system, it is characterised in that: described
Connecting pipe further includes the filling pipeline being connected with recyclable device, and the filling pipeline is equipped with filling pipeline main valve.
5. a kind of recycling of sulfur hexafluoride described in -4 any claims, low temperature fluid injection bulking system according to claim 1, special
Sign is: the recyclable device includes surge tank (7), compressor (5) and container, the surge tank (7) import with it is filling
Distribution tank (1) is connected, and compressor (5) extracts the remaining sulfur hexafluoride gas in filling apparatus into surge tank (7) and container
Realize sulfur hexafluoride gas recycling.
6. a kind of sulfur hexafluoride recycling according to claim 5, low temperature fluid injection bulking system, it is characterised in that: described
Recyclable device further includes adsorption tower (6), and the adsorption tower (6) is located on the pipeline between surge tank (7) and compressor (5),
The import of adsorption tower (6) is connected with surge tank (7) outlet, and the outlet of adsorption tower (6) is connected with the import of compressor (5).
7. a kind of sulfur hexafluoride recycling according to claim 6, low temperature fluid injection bulking system, it is characterised in that: described
Recyclable device further includes topping-up pump (3), and the outlet of the topping-up pump (3) is connected with filling pipeline main valve import.
8. a kind of sulfur hexafluoride recycling according to claim 7, low temperature fluid injection bulking system, it is characterised in that: described
Container is deep cooling container (4), and the deep cooling container (4) is located between topping-up pump (3) and compressor (5), and deep cooling container (4) goes out
Mouth is connected with topping-up pump (3) import, and deep cooling container (4) import is connected with compressor (5).
9. a kind of sulfur hexafluoride recycling according to claim 8, low temperature fluid injection bulking system, it is characterised in that: described
Recyclable device further includes exhaust gas exhaust pipe, and exhaust gas exhaust pipe one end is connected with surge tank (7) import, and exhaust gas exhaust pipe is another
What one end can be dismounted with exhaust gas memory (9) detachable connection, exhaust gas exhaust pipe is equipped with waste gas recovery valve Vd.
10. the working method of a kind of sulfur hexafluoride recycling according to claim 9, low temperature fluid injection bulking system, feature
Be the following steps are included:
1) ensure that filling pipeline total valve V0, filling pipeline exhaust valve Va are in close state before filling, by filling steel cylinder (8) point
Do not connect with filling pipeline, open filling pipeline vacuum valve Vb and filling valve, open vacuum pump (2) to filling distribution tank (1),
Filling pipeline and filling connecting tube and steel cylinder (8) interface position carry out vacuumize process, are less than 5Pa to the pressure in pipeline
When, filling pipeline vacuum valve Vb and filling valve are closed, is closed vacuum pump (2), vacuum processing terminates；
2) filling valve and steel cylinder (8) valve for opening the filling filling pipeline of pipeline total valve V0 and first, utilize topping-up pump (3)
Weight that is filling, and weighing steel cylinder (8) in real time is carried out to the 1st steel cylinder (8), when the weight of steel cylinder (8) increases to setting value,
Topping-up pump (3), filling valve are closed, steel cylinder (8) valve is closed, the 1st bottle of SF6 cylinder filling terminates；Open topping-up pump (3), second
Filling valve and steel cylinder (8) valve of filling pipeline carry out the 2nd steel cylinder (8) filling, and so on, it is filled to all steel cylinders (8)
After the completion of dress, filling pipeline total valve V0 is closed；
3) filling pipeline exhaust valve Va, the Vc and filling valve for opening exhaust pipe, are then turned on the compressor (5) of processing unit
Gas in filling distribution tank (1) and pipeline is recycled by exhaust pipe, is one to the pressure in exhaust pipe
When atmospheric pressure, filling pipeline exhaust valve Va, Vc and filling valve, and close compressor (5) are closed, disconnects steel cylinder (8) connecting tube, is filled
Dress terminates.
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